You have it right. It is a numbers game. You just need to get out there, expose yourself (not literally) to as many women as possible, and take lots of chances. Don't hedge yourself into a single type. Get to meet lots of different and diverse types of people. If you keep chasing after the same type of girl, your outcome isn't likely to change.
Of course, this isn't possible for everyone. Myself included. I work strange hours. Almost graveyard shift. Money's good though.